Josh Walsh
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joshuawalsh.bsky.social
Josh Walsh
@joshuawalsh.bsky.social
Organic Chem Prof in the center of Canada |Newfoundlander 🇨🇦 | Postdoc 🇨🇭 | PAHs & Synthesis

University of Manitoba
http://walshchemistry.sites.umanitoba.ca
Reposted by Josh Walsh
Interested in non-functional organic magnetic switches?

We actually do want to make them work — that’s why we study the ones that don’t, so we can make them function :-)

Check out our new preprint 🔗
chemrxiv.org/engage/chemr...

@paulinepfister.bsky.social
@chem.uzh.ch #ChemSky #PiSky
October 17, 2025 at 2:36 PM
Thanks for the funding! 😁
We’re investing $1.8M to support 24 early-career researchers through our 2025 New Investigator Operating Grant program, advancing work in health, clean tech, and social innovation across Manitoba.
Details: researchmanitoba.ca/niog-2025/
Research Manitoba Announces $1.8M in Funding for 24 New Investigators - Research Manitoba
researchmanitoba.ca
October 27, 2025 at 5:21 PM
Reposted by Josh Walsh
Delighted to share the work of John Bergner about the influence of fluoranthene in the TPA response of ribbon-shape nanographenes! 😊 Huge congratulation to the team at Kivala Group, Campaña Lab and Ermelinda Maçôas. Beautiful work! 👏
doi.org/10.1021/acs.... #PiSky
Fluoranthene-Containing Distorted Nanographenes Exhibiting Two-Photon Absorption Response
Two distorted nanographenes combining helicenes and a fluoranthene unit within their polycyclic scaffolds were synthesized. Their structural and electronic properties were elucidated by various spectr...
doi.org
September 2, 2025 at 9:21 AM
Reposted by Josh Walsh
Super stoked about our second JACS! We establish allenes as reversible halochromes with dramatic optical property switching. This work could not have been this successful without the amazing support from @minjungson.bsky.social at BU and the Ding Lab at WFU. Check it out
pubs.acs.org/doi/10.1021/...
Allenes as Stimuli-Responsive Chromophores for Visible to Near-Infrared Optical Modulation
Despite their rigid, orthogonal π-systems and synthetic modularity, allenes remain underexplored in functional material design. Here, we report that tetraaryl-substituted allenes undergo clean and rev...
pubs.acs.org
August 28, 2025 at 12:50 AM
Reposted by Josh Walsh
Reza’s latest work is hot off the press!
Happy to contribute to the conjugated materials special issue in Organic Letters #ChemSky #PiSky pubs.acs.org/doi/10.1021/...
From Aqua Green to Deep Red in One Step: Targeted Design of a Highly Luminescent Phosphacyclic Vat Orange 3 Dye
Silver-mediated phosphacyclic ring expansion with strategic placement of phosphorus and dimethyl acetylenedicarboxylate (DMAD) on Vat Orange 3 was carried out. The target compounds possess narrow HOMO...
pubs.acs.org
August 23, 2025 at 2:49 PM
Reposted by Josh Walsh
Water impacts self-assembly. But what changes really?
In our latest @jacs.acspublications.org at 🇨🇭UNIGE, we ferret out vastly different organisations in wet vs dry solvents that lead to identical macrostructures
👉 doi.org/10.1021/jacs.4c17024 #pisky #chemsky
@rickhauslab.bsky.social
A Supramolecular Nanosheet Assembled from Carpyridines and Water
The use of water as a solvent to facilitate supramolecular self-assembly and polymerization is well-documented; however, it is rare that water acts as a monomer that undergoes polymerization. We repor...
doi.org
May 19, 2025 at 9:51 AM
Reposted by Josh Walsh
Our new preprint introduces a new approach for controlling the helicity and handedness of polyaromatics using a helical cyclophane synthon: isobenzofuranophane.
We demonstrate the applicability by remotely controlling the handedness and pitch of [5]helicenes. go.shr.lc/44yCyln
#PiSky
May 12, 2025 at 7:23 AM
Reposted by Josh Walsh
An ABSOLUTELY spectacular structure by the Xia group at SUSTECH. Haiping & his team have been working on enveloping the metal with a fully conjugated carbon ring for over a decade, and they finally succeeded! This warms my reformed metallabenzene chemist's heart!
cen.acs.org/synthesis/Os... #PiSky
Osmium ensnared in a hydrocarbon ring
Chemists make new class of planar organometallic compounds
cen.acs.org
April 30, 2025 at 5:06 PM
Reposted by Josh Walsh
Very happy to share with all of you this review on Nanographenes exhibiting Circularly Polarized Luminescence! I hope you enjoy reading it! 😀 #PiSky #ChemSky

doi.org/10.1039/D4CS...
Chiral nanographenes exhibiting circularly polarized luminescence
Chiral nanographenes constitute an unconventional material class that deviates from planar graphene cutouts. They have gained considerable attention for their ability to exhibit circularly polarized l...
doi.org
April 21, 2025 at 11:34 AM
Reposted by Josh Walsh
🌟 Abstract Submission and Registration are Open!!! 🌟
Join the 6th International Symposium on Curved Organic π-Molecules & Materials (CURO-π6), 23–25 July 2025 in St. John's, NL, Canada. Network, collaborate & explore innovations!

#CUROπ6 #ISNAFamily #MemorialUniversity
March 28, 2025 at 10:36 AM
Reposted by Josh Walsh
Looking for a PhD candidate to join my group at the University of Zurich If you are an excellent and motivated student🧑‍🔬and want to integrate organic synthesis, photochemistry and redox chemistry in a research🧪 we want to know more about you! More info: www.stacko.group Appreciate sharing the post.
February 25, 2025 at 8:22 AM
Reposted by Josh Walsh
Frontier Molecular Group@NIMS is recruiting for a postdoc research position. If you are interested, please get in touch with me. Please also spread the word about the job opening.

Liquid electrets
www.nims.go.jp/eng/employme...
January 13, 2025 at 3:39 AM
Ready for office hours
December 13, 2024 at 11:51 PM
Sam Awuku producing some beautiful liquid compounds in the lab today. #pisky #realtimechem
December 10, 2024 at 7:35 PM
New autocolumn online! Thank you to Ghazal from Santai science for all the help.
November 28, 2024 at 7:18 PM
Reposted by Josh Walsh
Calling all 🇨🇦 chemists. Here is a starting pack to connect go.bsky.app/Btb9A95. #chemsky #realtimechem #chemistry. The more the merrier so let me know if you want to join too.
November 20, 2024 at 11:39 PM
Hello BlueSky!
#pisky #realtimechem
November 22, 2024 at 8:00 PM
Reposted by Josh Walsh
Guven the notable exodus: Let's gather the family once more🤩I have started a (currently very small) #starterpack of PIs and Lab Heads revolving around #Polyaromatic #Chemistry #ISNA #CuroPi. Happy to add you and (regrow) the gang here where the sky is blue☀️ 🧪 #chemsky
go.bsky.app/241xcWx
November 16, 2024 at 6:08 AM